The antiferromagnetism of (Fe 1− xMn x) 3P, x⩾0.67, compounds

The structural and magnetic properties of (Fe 1− x Mn x ) 3P compounds, in the concentration range 0.67⩽ x⩽1, have been investigated by means of X-ray and neutron diffraction experiments, magnetisation measurements, Mössbauer spectroscopy and first principles electronic structure calculations. The m...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2003, Vol.256 (1), p.117-128
Main Authors: Liu, Hui-ping, Andersson, Y., James, P., Satula, D., Kalska, B., Häggström, L., Eriksson, O., Broddefalk, A., Nordblad, P.
Format: Article
Language:English
Subjects:
Antiferromagnetics
Antiferromagnetism
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron density of states and band structure of crystalline solids
Electron states
Exact sciences and technology
First principles calculations
Magnetic properties and materials
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Magnetisation
Mn 3P
Mossbauer effect
other γ-ray spectroscopy
Mössbauer effect
other γ-ray spectroscopy
Mössbauer spectroscopy
Neutron diffraction
Physics
Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)
Studies of specific magnetic materials
Transition metals and alloys
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Summary:The structural and magnetic properties of (Fe 1− x Mn x ) 3P compounds, in the concentration range 0.67⩽ x⩽1, have been investigated by means of X-ray and neutron diffraction experiments, magnetisation measurements, Mössbauer spectroscopy and first principles electronic structure calculations. The magnetic ordering temperatures obtained from the different techniques were consistent with each other but different from previously published results. The magnetisation curves and neutron diffraction intensities can be explained by an antiferromagnetic ordering with a magnetic unit cell four times larger than the crystallographic unit cell. The magnetic moments are small as judged from neutron diffraction and Mössbauer spectroscopy results. The band calculations on the other hand suggest a competition between Pauli paramagnetism and magnetic solutions with large magnetic moments.
ISSN:0304-8853
DOI:10.1016/S0304-8853(02)00414-6